Pattern and guide strip



S. H. CALKINS.

PATTERN AND GUIDE STRIP.

APPLICATION'HLED NOV. 15. 1919.

1,371,857. Patented Mar. 15, 1921.

. WITNESSES 5 4 TTORNE Y8 UNITED STATES PATENT OFFICE.

SEWARD HOMER CALKINS, OF

MARBLE 00., OF LONG ISLAND CITY,

PATTERN AN D GUIDE STRIP.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed November 15, 1919. Serial No. 338,353.

a Guide Strip, of which the following is a full, clear, and exact description.

This invention relates to pattern and guide strips for plastic work, and has for an object to provide an improved device which will permit the ready depositing and finishing of wall or floor coatings of a number of different colors without the various colors commingling.

Another object of the invention is to provide a guide strip which acts as means for limiting the lastic material when being placed in position and also as means pre-' senting a leveling or height. controlling stri A still further object in view is to provide a strip which will act as a guide and pattern for plastic floors, walls, and the like, which will in addition take care of the expension of material and which need not be removed after the work has been completed so that the same or difi'erent colors may be used freelyand treated in-the proper manner for producing the best results.

In the accompanying drawing:

a Figure 1 is-a longitudinal vertical section through part of a floor showing 'a pattern and guide strip embodying the invention.

Fig. 2 is a tgp stri shown in ig. 1.

1g.- 3 is a fragmentary erspective view showing an embodiment of t e invention applied to a wood floor.

Fig. 4 is a fragmentary top plan view of a finished piece of a pattern and guide strip embodying the invention.

Fig. 5 is a detailfragmentary perspective view showing two guide strips connected to gether end to'end. Fi 6' is an end fie'd orm of guide strip.

Fig. 7 is a perspective view of part of a. guide strip of the kind shown in ig. 6.

In laying concrete floors, walls or ceil-" ings, thematerial mustbe properl mixed and placed in position and then al owed to season or bar en before 1t 1:! used. Where plan view of theguide floor construction withview of a slightly modia mosaic is to be provided, for instance what is known as a terrazzo mosaic the concrete is mixed with coloring matter if desired and also with marble or other material, and is pressed by any suitable means, as for instance a roller until the texture is comparatively close. After this has been done the prepared floor is allowed to season or harden to a certain extent, which requires several days. After it has been pro erly seasoned or hardened by the action 0? the air, the top surface is ground, either manually or by a grindin machine to produce a smooth even finish. n the grinding action takes place before the floor has properly set said floor will be so soft as to allow an an desirable grinding away and a less desirable finish. If the floor is allowed to set too long and becomes too hard the grinding is I more difficult and the finish or polish is not so satisfactory. For this reason workmen are careful to grind the floor at the pro or time. Heretofore in order to secure di erent colors a wood pattern or guide stripwas used and part of the floor laid of the color desired. After the part laid has set to a certain extent the wood guides are taken away and the remaining part of the floor is placed in position, said remaining part being of a different color. The entire floor is then allowed to set or season for the desired length of timeand is then ground. This has been the common ractice but is objectionable because the rst part of the floor will be too hard for proper grinding, or the second art will be too soft. To obviate this di culty the pattern or guide strip embodying the invention has been provided, which allows as many differ ent colors to same time permits the same ing to take place, as all 0 co ors are put down at the same time. last or improved method results in providing a terrazzo mosaic of a very superior quality with as many different colors as may be desired.

Referring to the accompanying drawing by numerals, 1 indicates a foundation of any kind on which a lower bed 2 is placed, said lower bed being cement, sand, and if desired gravel, mixed to provide a comparatively compact bed. While this bed is still green, or soft, a stri 3 is placed in position thereon and force downwardly until the wings This 1 tion with said Tgure.

or holding clamps 4 engage the upper sura mosaic on a wood floor the strips may be face of the lower bed 2. his lower bed is, of course, leveled oil by any suitable means before the strip 311% been placed in position. By reason of the wings 1 the strips are held in such a position that the upper edge of the strip 3 will be at a certain hei ht from the upper surface of the lower bed 2.

Preferably the lower bed 2 is made of the proper thickness to allow the ed e of strip 3 to rest on the foundation 1, though this is not essential. The arrangement of the parts as justdescribed permits the strip 3 to act as a height guide when placing the uplper bed or finishing layer 5 in place.

.n forming the strip 3 the wings & are pressed out of the lower part of the strip and extend on opposite sides of the strip so as to act as supports and in a certain sense as anchors for the strip. In addition to these cars an anchoring or end clamp 6 is provided by pressing out and twisting a section of the strip as shown in Figs. 1 and 2. After the strip has been placed in position and the lower bed 2 is allowed to harden member 6 will act as a firm anchor for holding the strip against removal or displacement. The strips 3 are notched at intervals, according to the design desired and transverse strips 3' and 3 are similarly notched and are interlocked with strip 3 as shown in Fig. 2. The strips 3 may be of any length and have any desired number of wings 4 and anchoring clamps, 6, so that it will remain in proper position regardless of the length or the way in which it is bent or formed.

In Fig. 4 a finished floor is shown in which a ring 7 is made from a stri 3 in which a quantity of a certain colore material 8 is deposited, the material exteriorly of the ring eing of a different color. The flooring shown in Fig. 4 is arranged with a number of different designs which produce a general design structure desired. Other forms could be provided without departing fromgthe spirit of the invention. \Vhen forming the "floor shown in Fig. 4, or formng any other floor, wall, or ceiling, strips 3 are properly shaped and placed in position as shown in 1 and described in connec- The various colored plastic materials-are then supplied to the 1 varlous places desired, said depositing of the various materials bein that the aging will After the material has a. grindin done at one time so e even throughout. been properly aged machine is passed over the floor and the oor ground to the desired extent. The strips 3 are (preferably brass, than h other material coul be used, brass being (fiesirable because it will 'nd away easily along with the .upper sur ace of the cement or other material used in the body of the floor. Qrdmarily the strips are arranged as shown in Fig. 1, and if it is desired to place held against said floor by nails 9, (Fig. 3), said nails passing through suitable apertures in the win s 4. In some circumstances it might be (esirable to provide a strip 10 similar to strip 3. except that it is solid throughout. In order to properly anchor this strip in place and also to properly support the same on the lower bed 2 a clip 11 is provided having a U-shaped section into which the strip 10 fits, said U-shaped section mer in into side wings 12 and 13. If desired t ic c ip 11 could be soldered, riveted, or otherwise secured to strip 10, though ordinarily this is not necessary. here two strips 3, or two strips 10 are to be arran ed in tandem an overlapping joint is provi ed as shown in Fig. 5. This structure is provided by merely slitting one of the strips 3 at 1-1 and bending the sections 15 and 16 to one side so that the end of the next adjacent strip 3 may he slid therein. The concrete or other lastic material, when placed in position will adhere to the metal and consequently will prevent or take care of contraction or expansion so that there will be no cracks in the floor or other surface. The use of a strip embodying the invention will result in increasin the speed of construction, uniformity 0 setting or hardening of the floor, and perfection in producing the designs desired. The strips are left in position afterthe floor has been finished, and as they are very thin there will be no objection, especially as they prevent spoiling of the ed es of any design, either during the time a? forming the same or afterward.

"hat I claim is:

1. A pattern and lids strip comprising a flat strip of metal living a straight edge, said strip being formed with part thereof pressed out so as to extend to oneside of the main part of the strip and act-as anchoring means when embedded in plastic material, said pressed out member bein arrangedso that its flat faces will be in p anes parallel with said straight edge.

2. A pattern and guide strip comprising a thin strip of metal aving a'straight ed e, and a section pressed out of the opposite edge to the straight edge, said pressed out section caused to project beyond the sides of the strip to act as anchoring means when placed in lastic material, and also to permit the plastic material to flow into the opening caused by the pressed out section, said section bein positioned with its flat faces parallel with said straight edge.

3. A pattern and guide strip for plastic work for use in producing desi s of difl'erent colors, comprisin a flat, t in stri of metal having a straig t ed and capab e of being bent into'different s a s, each strip being formed with a plum ity of transversely extending anchors intermediate its ends, and a plurality of bent out wings acting as leveling or supporting members.

4. A pattern and guide strip comprising adflat, thin strip of metal having a straight e e, coi i lprising a strip of metal bent to produce a U- haped socket in which the first mentioned strip is positioned, and a pair of laterally extending faces adapted to rest against said plastic material when the first mentioned support is placed therein.

5. A pattern and guide strip for plastic work for use in producin designs comprising a flat thin strip 0 metal having a 15 straight edge, a plurality of pressed out seeand a supporting structure therefor tions intermediate its ends having their flat faces substantially parallel with said straight edge, and a pressed out section havin its faces extending at'an angle to the si e of said strip.

6. A pattern and guide strip comprising a thin, flat body having a straight edge, means for holding the same in position when in use, and a pair of laterally extending pressed out portions at the end forming a guide and lock for the next adjacent strip whereby adjacent strips may be held in proper alinement.

SEWARD HOMER CALKINS. 

